It's a trivial matter and not worth fighting about.

这是一桩小事，不值得为之争辩。

《牛津词典》

This was not quite a trivial matter.

这可不是个小问题。

youdao

Loaning someone money is not a trivial matter.

借给别人钱不是一件鸡毛蒜皮的小事。

youdao

It is a trivial matter and not worth fighting about.

这是一桩小事，不值得为之争辩。

youdao

This is not a trivial matter.

这本是一件小事。

youdao

This is not a trivial matter.

这本是一件小事。

youdao